Dolime-Based Heat Insulation Boards from Mexico
Rigid insulation panels made from dolime aggregates for high-temperature industrial ovens. Falls under HTS 6815.91.00 for dolomite/dolime content in fabricated form. Lightweight alternative to fiber insulation in petrochemical plants.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Test for dolime content vs. cement to avoid Chapter 68 cement misclassification
• Include thermal conductivity specs for end-use verification
• Ensure boards exceed 25mm thickness to qualify as articles